How can I lose stubborn weight in just 1 month after trying everything?

I have been trying to lose weight for over 2 years now... but cannot do it whatsoever. I tried gym, diet control, fat burner capsules, walking, yoga... but nothing happened. My weight is just not dropping... I am 75 kgs... and cannot drop my weight below 70... It's that stubborn.
How can I lose stubborn weight in just 1 month after trying everything?
Post Opinion